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Adjustment device

a technology of adjustment device and adjusting plate, which is applied in the direction of metal rolling, metal rolling stand, manufacturing tools, etc., can solve the problems of measurement error, false position data, measurement accuracy decrease, etc., and achieve the effect of small bore, small diameter, and good guiding

Active Publication Date: 2021-09-07
PRIMETALS TECH AUSTRIA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes an adjustment device for a roll stand that uses a travel measurement device to accurately measure the position data of the hydraulic cylinder, which is connected to the roll support. This data is used to regulate the feed movement or return movement of the roll, ensuring precise positioning relative to the roll support. The use of the direct connection between the coupling rod and piston eliminates the need for pretensioning of the coupling rod by a spring element, making the measurement device more reliable and accurate. Overall, this device improves production quality and reduces regulating complexity.

Problems solved by technology

Further drawbacks of the prior art include that the measurement precision decreases with increasing fatigue of the spring element; likewise, adjustment devices according to the prior art tend to be susceptible to tipping, causing measurement errors and false position data.

Method used

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Examples

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Embodiment Construction

[0036]FIG. 1 shows a roll stand 19, which comprises two roll supports 13 and four rolls 20, from a perspective view. The four rolls 20 are arranged above each other in a vertical direction such that the rolled stock (not shown) is being rolled and conveyed in the roll gap between the two upper rolls and the two lower rolls of the roll stand 19 in a substantially horizontal direction, as indicated by an arrow. According to the specific purpose of the roll stand 19, the mounting of more than four rolls in a roll stand, is also possible. The shaft at each of the two ends of a roll 20 is mounted via a chock 22 (shown in FIG. 2) in the opening 24 of one of the two roll supports 13 and is as such movable in a vertical direction.

[0037]The end of each shaft of each roll in a roll stand does not necessarily have a respective chock. Referring to the exemplary roll stand depicted in FIG. 1 of the pending application (4-Hi stand), each roll has a chock at both of its ends, hence 4 chocks are ar...

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Abstract

An adjustment device for adjusting a roll in a roll support (13) of a roll stand includes a cylinder housing (2) that can be secured to a roll support (13), and a piston (1) guided to move translationally in and across the roll support. The position of the piston (1) can be determined via a travel measurement device (9) connected to a coupling rod (6) secured directly to the piston (1). The piston (1) has a guide element (3) extending from the piston head (4) into a bore in the roll rack and in the direction toward the travel measurement device (9). The coupling rod (6) is secured to the guide element (3). To reduce the sensitivity of the adjustment device to a tipping, the guide element (3) is guided in a guide opening (14) of the cylinder housing (2). A sliding guide (7) is provided for the coupling rod (6), which can be arranged on an end of a borehole (15) in the roll rack facing the travel measurement device (9).

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a 35 U.S.C. §§ 371 national phase conversion of PCT / EP2016 / 072717, filed Sep. 23, 2016, which claims priority of European Patent Application No. 15188048.1, filed Oct. 2, 2015, the contents of which are incorporated by reference herein. The PCT International Application was published in the German language.TECHNICAL FIELD[0002]The invention relates to an adjustment device for adjusting a roll in a roll support of a roll stand, the adjustment device comprises a cylinder housing that is fastenable to a roll support, and a piston that is guided so as to be movable in translation in the cylinder housing. The position of the piston is able to be determined via a travel measurement device connected to a coupling rod, and to a system comprising a roll support and an adjustment device.PRIOR ART[0003]Each roll has a shaft at both ends. In roll stands comprising 4 or 6 rolls arranged vertically above each other, each roll...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B21B31/32B21B38/00B21B38/10
CPCB21B31/32B21B38/00B21B38/10B21B2271/02
Inventor BUSLEHNER, STEFANDIRISAMER, GERNOTRADEK, ANSGARSCHALLAUER, FRANZ
Owner PRIMETALS TECH AUSTRIA GMBH